CN105801903B - A kind of preparation and its anticorrosion implementation method of super-hydrophobic sponge material - Google Patents
A kind of preparation and its anticorrosion implementation method of super-hydrophobic sponge material Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/36—After-treatment
- C08J9/40—Impregnation
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F15/00—Other methods of preventing corrosion or incrustation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2361/00—Characterised by the use of condensation polymers of aldehydes or ketones; Derivatives of such polymers
- C08J2361/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C08J2361/26—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds
- C08J2361/28—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds with melamine
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Abstract
The present invention provides the preparation and its anticorrosion implementation method of a kind of super-hydrophobic sponge material, belongs to metal erosion protection field.The present invention is modified organosilan on the surface of melamine sponge using infusion method, hydrophily sponge is set to become super-hydrophobic sponge, metal surface is invested using the super-hydrophobic sponge of block as coating, seawater phase is isolated with metal, using air pump conveying dry gas into metal surface and the super-hydrophobic sponge of block, innovatively construct a kind of ventilation-super-hydrophobic sponge comprehensive anticorrosive system, outstanding feature are as follows: seawater corrosion reaction complicated under water can be changed into the atmospheric corrosion that only aerobic and water participates in and reacted by super-hydrophobic sponge block.The method of ventilation can further take away the vapor in sponge structure, the moisture in sponge is taken out of by the flowing of dry gas, to maintain state dry in sponge, complicated seawater corrosion is finally converted into the slow oxidative reaction that only dry air participates in, to realize the anticorrosion of metal.
Description
Technical field
The present invention relates to the metal erosion of briny environment to protect field, specifically a kind of system of super-hydrophobic sponge material
Method that is standby and realizing anti-corrosion of metal long-actingization as erosion resistant coating using the super-hydrophobic sponge under aeration condition.
Background technique
The extensive pass of different field researcher is caused in recent two decades by the super-hydrophobic wetability that lotus leaf effect inspires
Note.Essentially, super-hydrophobic is to be greater than water droplet with surface contact angle by both hydrophobicity and roughness collective effect
150 ° of wetting phenomena.Its special performance imparts all various purposes, is such as directed to the characteristic of surface alienation water droplet, super-hydrophobic
Property it is antifog, in terms of have excellent performance.
The mankind need many materials to the exploration and development activity of ocean to play various different functions, this also gives super-hydrophobic
Wetability provides chance, and in briny environment, purposes also very extensively, for example can reduce skin resistance, anti-fouling, anti-
All various aspects such as corrosion.In the various potential uses of super-hydrophobicity, the material base-gas blanket of " hydrophobic " plays most important
Effect.The Corrosion Protection of super hydrophobic material blocks the intrusion of water phase dependent on the air layer that surface is formed, and avoids water phase
In corrosion species reach metal surface, to play etch-proof effect.
Although research has shown that environment has many outstanding representations to super-hydrophobic wetability under water, practical application, which faces, is chosen
War.It is most one of the outstanding problem for restricting its application that super-hydrophobic wetability fails under water.The super-hydrophobic system of underwater environment is by depositing
It stores air, water phase and three kinds of states of matters of solid structure that water phase plays a supportive role is collectively constituted.It is assumed that solid structure performance is steady
Fixed, the substance of storing gas and water phase, energy exchange effect determine the durability of super-hydrophobic wetability.Water ring under realistic situation
Super-hydrophobic system in border is the metastable state system an of dynamic change.Hydrostatic pressure and as caused by water phase surface curvature
Laplace pressure collective effect can make storing gas constantly be soluble in the aqueous phase.Since storing gas is finite quantity, with gas in gas-bearing formation
Body diffusion dissolution constantly into water, remaining storage capability are constantly reduced, and surface wettability will change from super-hydrophobic Cassie state
For the Wenzel state of infiltration, the failure of super-hydrophobic wetability is eventually led to.Once the super-hydrophobicity of material fails, to matrix
Protective effect will also terminate, corrosion will also occur therewith.
Traditional super hydrophobic material is film material, utilizes the system such as electrochemical in-situ growth, chemical vapor deposition method
It is standby, since the gas phase contained will fade away totally for finite quantity so that with the extension of soaking time, to lose super
Hydrophobic performance.The substitute that super-hydrophobic sponge material can be used as traditional super-hydrophobic film layer material is used for the anticorrosion of metal material.
It has a characteristic that (1) super-hydrophobic sponge can be processed as block compared with traditional film material, so as to more fully
It protects by protection metal material；(2) there is the three-D space structure of connection, by super-hydrophobic sea in super-hydrophobic sponge
It is passed through dry air in continuous material, the vapor entered in sponge matrix can be taken away, internally dry environment be maintained, to extend
The hydrophobic service life of super hydrophobic material.Based on above-mentioned analysis, it if super-hydrophobic sponge material combined with ventilation, constructs a kind of logical
The super-hydrophobic sponge comprehensive anticorrosive system of gas-, and it is applied to metal erosion field in briny environment, will have particularly significant
Realistic meaning.
Summary of the invention
Technical assignment of the invention is to solve the deficiencies in the prior art, provide a kind of super-hydrophobic sponge material preparation and its
Anticorrosion implementation method.
Design concept of the invention is: firstly, modified organosilan on the surface of melamine sponge using infusion method,
Hydrophily sponge is set to become super-hydrophobic sponge；Secondly, metal surface is invested using the super-hydrophobic sponge of block as coating, by seawater
It is mutually isolated with metal, using air pump conveying dry gas into metal surface and the super-hydrophobic sponge of block, passes through dry gas
The moisture in sponge is taken in the flowing of body out of, to maintain state dry in sponge, harsh seawater corrosion is transformed into
Slight dry state air oxidation, to realize the anticorrosion of metal.
The technical solution adopted by the present invention to solve the technical problems is:
1, the present invention provides a kind of preparation method of super-hydrophobic sponge material, includes the following steps:
1) melamine sponge is immersed in cleaning solution and is cleaned by ultrasonic, remove sponge impurity, after taking-up air-dry to
With；
2) it will be immersed in hydrophobically modified agent solution through the processed melamine sponge of step 1), hydrophobic modifier is made to exist
Melamine sponge surface adheres to, and the hydrophobic modifier in the hydrophobically modified agent solution is organosilan, and hydrophobic modifier is molten
Liquid is mixed by solvent and organosilan with volume ratio 1: 5~1: 100, wherein organosilan is carbon atom quantity in carbochain
The alkyltrichlorosilanes of 1-14；
3) it will be air-dried after the processed melamine sponge of step 2) is taken out, super-hydrophobic sponge material is made.
Further, the organosilan is methyl trichlorosilane, ethyl trichlorosilane, n-octyl trichlorosilane, the positive last of the ten Heavenly stems
At least one of base trichlorosilane, dodecyltrichlorosilane etc..
Further, the solvent in the hydrophobically modified agent solution is that the oil such as n-hexane, ethyl alcohol, acetone, chloroform is molten
At least one of property solvent.
Further, the cleaning solution includes acetone and dehydrated alcohol, by melamine sponge be successively immersed in acetone and
It is cleaned by ultrasonic in dehydrated alcohol.
The present invention separately provides a kind of anticorrosion implementation method of super-hydrophobic sponge material, includes the following steps:
1) metal material processing is utilized into adhesive after sand paper polishing, alchlor polishing at the sample of certain size
Sample and vent wire are bonded, ventable specimen surface is formed；
2) block for being sized to super-hydrophobic sponge material is coated on the surface of sample as coating, surpasses
Sample and corrosive liquid are isolated by hydrophobic sponge block, the surface and super-hydrophobic sponge block using air pump conveying compressed air to sample
In, building ventilation preservative challenge test device；
3) in super-hydrophobic sponge block cladding, under aeration condition, the erosion profile of test sample and super-hydrophobic sponge block it is wet
Degree evidence.
The adhesive is epoxy resin.
Further, the ventilation preservative challenge test device, including beaker are loaded with corrosive liquid in beaker, are equipped in beaker
For fixing the bracket of super-hydrophobic sponge block, sample and vent wire, the syringe needle of the vent wire are coated in super-hydrophobic sponge block
Bonding with sample by adhesive, vent wire is through the external air pump of snorkel, and outside air is through air pump compresses, snorkel, ventilation
After needle conveying, flow through to the surface of sample, and enter in super-hydrophobic sponge block.
Further, the ventilation preservative challenge test device further includes humidity sensor, and humidity sensor is coated on super-hydrophobic
In sponge block, for detecting the humidity data of super-hydrophobic sponge block.
Further, the vent wire is concatenated the external air pump of snorkel of drier, for mentioning for the surface of sample
For dry air-flow.
A kind of preparation of super-hydrophobic sponge material and its anticorrosion implementation method compared with prior art caused by it is beneficial
Effect is:
1, the present invention innovatively constructs a kind of ventilation-super-hydrophobic sponge comprehensive anticorrosive system, outstanding feature are as follows: super
Seawater corrosion reaction complicated under water can be changed into the atmospheric corrosion that only aerobic and water participates in and reacted by hydrophobic sponge block；It is logical
The method of gas can further take away the vapor in sponge structure, so effect of the water in corrosion is also weakened；Without
Water and Cl-Participation, complicated seawater corrosion finally change in order to only have dry air participate in slow oxidative reaction；
2, the super-hydrophobic sponge comprehensive anticorrosive system of ventilation-constructed by the present invention, design structure is simple, scientific in principle,
It is worth with very high promotion and application；
3, the preparation method of the material of a kind of super-hydrophobic sponge provided by the invention, have it is low in cost, simple process is easy
Row, it is reproducible the features such as, be convenient for large-scale industrial production.
Detailed description of the invention
Attached drawing 1 is the SEM shape appearance figure of initial melamine sponge and super-hydrophobic sponge material prepared by the present invention；
Attached drawing 2 is the wettability figure of initial melamine sponge and super-hydrophobic sponge material prepared by the present invention to water droplet
Piece；
Attached drawing 3 is the overall structure diagram of ventilation preservative challenge test device according to the present invention；
Attached drawing 4 is the structural schematic diagram between ventable steel disc according to the present invention and super-hydrophobic sponge block；
Attached drawing 5 is the top view of beaker according to the present invention, super-hydrophobic sponge block and bracket portion；
Attached drawing 6 is the main view of sample parts according to the present invention；
Attached drawing 7 is the top view of sample parts according to the present invention；
Attached drawing 8 is that steel disc of the invention is immersed in seawater corrosion liquid surface corrosion pattern at any time at different conditions
Row 1: variation diagram freely impregnates in seawater corrosion liquid；Row 2: the super-hydrophobic sponge block that do not ventilate；Row 3: super thin under aeration condition
Water sponge block, column 1-6 are respectively soaking time 0-5 days surface topographies；
Attached drawing 9 be ventilate and non-aeration condition under super-hydrophobic sponge block interior humidity change with time figure；
Attached drawing 10 is the SEM that steel disc is dipped in the surface corrosion product in seawater corrosion liquid after 5 days under different capsulation conditions
Shape appearance figure: freely impregnating in Figure 10 (a), (b) seawater corrosion liquid, 10 (c), (d) super-hydrophobic sponge for not ventilating, 10 (e), (f)
Super-hydrophobic sponge under aeration condition.
In figure, 1, air pump, 2, snorkel, 3, drier, 4, beaker, 5, bracket, 6, super-hydrophobic sponge block, 7, sample portion
Point, 8, slit, 9, vent wire, 10, moisture sensor, 11, steel disc, 12, epoxy resin, 13, probe.
Specific embodiment
1-10 with reference to the accompanying drawing, preparation and its anticorrosion implementation method to a kind of super-hydrophobic sponge material of the invention
It is described in detail below.
Embodiment one (most preferred embodiment)
One, the preparation of super-hydrophobic sponge material:
1) 2cm × 2cm × 2.5cm melamine sponge is successively immersed in acetone and dehydrated alcohol and carries out ultrasound clearly
It washes, removal sponge impurity, natural air drying 4h after taking-up, for use；
2) it will be immersed in hydrophobically modified agent solution through the processed melamine sponge of step 1), control soaking time is
For 24 hours, adhere to hydrophobic modifier in melamine sponge surface, the solvent in the hydrophobically modified agent solution is n-hexane, is dredged
Water modifying agent is dodecyltrichlorosilane, and hydrophobically modified agent solution is by n-hexane and dodecyltrichlorosilane with volume ratio 1:
9 mix；
3) will be after the processed melamine sponge of step 2) be taken out, super-hydrophobic sponge material is made in natural air drying 8h.
Two, the performance test of super-hydrophobic sponge material
Super-hydrophobic sponge material to initial melamine sponge and Jing Guo super-hydrophobic processing carry out SEM morphology observations and
EDS constituent analysis.Super-hydrophobic sponge material using contact angle tester to initial melamine sponge and Jing Guo super-hydrophobic processing
Material carries out contact angle test, and when test, water droplet used was 5 microlitres.
SEM test result is as shown in Fig. 1, wherein Fig. 1 (a), (c), (e) represent initial melamine under different scales
The SEM shape appearance figure of sponge, Fig. 1 (b), (d), (f) represent the SEM shape appearance figure of super-hydrophobic sponge material under different scales.Comparison diagram 1
(a), (b) can be seen that the sponge skeleton surface in (b) produces fold, and skeleton becomes more tubbiness；It can be seen by Fig. 1 (d)
The cavity observed between sponge skeleton becomes smaller；Fig. 1 (f) shows that this phenomenon is generally existing in super-hydrophobic sponge material
's.Therefore Fig. 1 preliminary proof dodecyltrichlorosilane has successfully been attached to the surface of melamine sponge.
The element composition of EDS test is as shown in table 1, it can be seen that does not have Si, Cl in the ingredient of initial melamine sponge
Element, this element for meeting melamine sponge are constituted.Super-hydrophobic sponge material has found a large amount of Si element by EDS test
With certain Cl element, this absolutely proves that dodecyltrichlorosilane is successfully grafted on the surface of melamine sponge.
The original composition of initial melamine sponge and super-hydrophobic sponge material that table 1. is measured using EDS power spectrum
Contact angle test result is as shown in Fig. 2, and initial melamine sponge is super hydrophilic, contact angle such as Fig. 2 (a)
Shown, as seen from the figure, the contact angle of initial melamine sponge and water is 0 °.Super-hydrophobic sponge material difference cut surface is to water droplet
Contact angle be respectively 168 °, 163 °, 164 °, 166 °, as shown in Fig. 2 (b) to 2 (e), illustrate successfully to be prepared for globality
Super-hydrophobic sponge material.
Three, the anticorrosion implementation method of super-hydrophobic sponge material
The anti-corrosion implementation method of super-hydrophobic sponge material is suitable for various metal materials, in the present embodiment, is with steel disc 11
Example is illustrated, specific:
1) naked steel and ventable steel disc 11 are prepared:
A. it prepares naked steel: steel disc 11 is cut into 2mm × 10mm × 5mm sample, polished using large size sand paper, utilized later
Alchlor powder antiscuffing paste polishes steel disc 11.
B. it prepares ventable steel disc 11: steel disc 11 being cut into 2mm × 10mm × 5mm sample, is beaten using large size sand paper
Mill, is later polished steel disc 11 using alchlor powder antiscuffing paste, is glued steel disc 11 and vent wire 9 using epoxy resin
Knot, forms ventable 11 surface of steel disc.
2) the naked steel and ventable steel disc 11 for preparing step 1), combines with the super-hydrophobic sponge material of preparation, takes
Build the experimental provision under various experiment conditions.
Attached drawing 3,4,5 is that ventilation anti-corrosion of the steel disc 11 when super-hydrophobic sponge block 6 coats and is passed through dry air is real
Experiment device, this device mainly include air pump 1, drier 3 and sample parts 7, and air pump 1 is responsible for providing being passed through for compressed air, be done
Dry device 3 is responsible for the drying of compressed air.The details of sample parts 7 is as shown in Figures 6, 7.Sample parts 7 include steel disc 11 and lead to
Air tube 9 further includes moisture sensor 10, and the syringe needle of vent wire 9 is bonding by adhesive and steel disc 11 and moisture sensor 10,
The probe 13 of moisture sensor 10 is used to detect the humidity data of super-hydrophobic sponge block 6.Super-hydrophobic sponge material is processed into
20mm × 20mm × 20mm block cuts slit 8 among super-hydrophobic sponge block 6 using scalpel, and sample parts 7 are inserted into it
In, then super-hydrophobic sponge block 6 is put into the beaker 4 for being loaded with seawater corrosion liquid, super-hydrophobic sponge block 6 is by the support in beaker 4
Frame 5 is fixed, and super-hydrophobic sponge block 6 is isolated by steel disc 11 with seawater corrosion liquid phase, controls the power of air pump 1, is conveyed using air pump 1
Compressed air is into the surface of sample and super-hydrophobic sponge block 6.
The pattern of steel disc 11 at different conditions changes over time as shown in Fig. 8, which is naked steel in seawater
Pattern variation in 0 day, 1 day, 2 days, 3 days, 4 days and 5 days in corrosive liquid, with this condition, steel disc 11 receives strong corrosion,
Sheet of brown corrosion product is produced on surface.Second row shows that naked steel is placed on stuffiness 0 in super-hydrophobic sponge block 6
It, 1 day, 2 days, 3 days, the corrosive effects of 4 days and 5 days.It can be seen that being different from first row, it is placed in super-hydrophobic sponge
The corrosion product that naked steel is formed is discrete type, this illustrates that the super-hydrophobic sponge on surface plays certain corrosion-resisting function.The
Three rows are to be placed on the steel disc 11 in super-hydrophobic sponge block 6 and being passed through under dry air environment 0 day, 1 day, 2 in seawater corrosion liquid
It, 3 days, the pattern variations of 4 days and 5 days, with this condition, the corrosion that steel disc 11 is subject to is seldom, illustrates to be passed through dry air
Mode can effectively inhibit corrosion.
The moisture curve that steel disc 11 is placed in super-hydrophobic sponge block 6 under aeration condition and stuffiness under the conditions of obtains is such as
Shown in Fig. 9.It can be seen that the humidity under the conditions of stuffiness has broken through 100% in left and right for 24 hours, i.e. humidity is too high, wet sensitive sensing
The moisture condensation of device 10 causes to fail, and under such condition, corrosion is more serious；Humidity under aeration condition is stable 29% always
Left and right, corrosion is slowly.This also absolutely prove be passed through dry air in the case where there is the coated situation of super-hydrophobic sponge can
Slow down corrosion rate significantly, plays the role of etch-proof.
SEM morphology observations and EDS composition test have been done to the steel disc 11 under different soaking conditions.Steel disc under different condition
11 is as shown in Figure 10 in the 5th day microscopic appearance.Figure 10 (a), (b) are that naked steel is immersed directly in the microcosmic shape in seawater corrosion liquid
Looks.In order to see corrosion condition in substrate clearly, the corrosion product on steel disc 11 is scraped off with blade.It is generated in the substrate of naked steel
Compared with multiple cracking, illustrate to receive more serious corrosion.Table 2 is that naked steel is immersed directly in the substrate in seawater corrosion liquid
EDS constituent analysis, it can be seen that wherein Na+、Cl-The content of plasma is higher, this is also that naked steel corrodes sternly in seawater corrosion liquid
One of the reason of weight.The steel disc 11 in super-hydrophobic sponge block 6 is coated to place into seawater corrosion liquid than directly impregnating seawater corrosion
Liquid is weak by extent of corrosion, and table 2 is corresponding EDS spectrogram.It can be seen that without Na+、Cl-Plasma, this is because steel disc 11
There is no seawater corrosion liquid is directly contacted, condense in its surface just only has vapor, therefore does not have Na+、Cl-Plasma slows down
Corrosion.Figure 10 (e), (f) transfer the microscopic appearance after being corroded in super-hydrophobic sponge in aeration condition for steel disc 11.By scheming
As it can be seen that its extent of corrosion is lighter, smooth surface, EDS constituent analysis such as table 2 are still showed under high power scanning electron microscope
It is shown, wherein also without Na+、Cl-The influence of plasma, vapor is removed by way of being passed through dry air, thus greatly
Ground has delayed the process of corrosion, this illustrates that the method for ventilation is effective.
The steel disc that table 2. is measured using EDS power spectrum is dipped in 5 days rear surface corrosion products in seawater under different capsulation conditions
Composition
Embodiment two
1) 2cm × 2cm × 2.5cm melamine sponge is successively immersed in acetone and dehydrated alcohol and carries out ultrasound clearly
It washes, removal sponge impurity, natural air drying 4h after taking-up, for use；
2) it will be immersed in hydrophobically modified agent solution through the processed melamine sponge of step 1), control soaking time is
30h adheres to hydrophobic modifier in melamine sponge surface, and the solvent in the hydrophobically modified agent solution is ethyl alcohol, hydrophobic
Modifying agent is positive octyltrichlorosilane, hydrophobically modified agent solution by ethyl alcohol and n-octyl trichlorosilane with volume ratio 1: 5 mixes and
At；
3) will be after the processed melamine sponge of step 2) be taken out, super-hydrophobic sponge material is made in natural air drying 6h.
Embodiment three
1) 2cm × 2cm × 2.5cm melamine sponge is successively immersed in acetone and dehydrated alcohol and carries out ultrasound clearly
It washes, removal sponge impurity, natural air drying 4h after taking-up, for use；
2) it will be immersed in hydrophobically modified agent solution through the processed melamine sponge of step 1), control soaking time is
10h adheres to hydrophobic modifier in melamine sponge surface, and the solvent in the hydrophobically modified agent solution is chloroform,
Hydrophobic modifier is positive decyltrichlorosilane, and hydrophobically modified agent solution is by chloroform and positive decyl trichlorosilane with volume ratio 1:
100 mix；
3) will be after the processed melamine sponge of step 2) be taken out, super-hydrophobic sponge material is made in natural air drying 12h
Material.
Example IV
Example IV is dredged as in the first embodiment, except that solvent in step 2) in hydrophobically modified agent solution is acetone
Water modifying agent is methyl trichlorosilane, hydrophobically modified agent solution by acetone and methyl trichlorosilane with volume ratio 1: 25 mixes and
At.
Embodiment five
Example IV with embodiment two, except that solvent in step 2) in hydrophobically modified agent solution be n-hexane,
The mixture of ethyl alcohol and chloroform, hydrophobic modifier are ethyl trichlorosilane, hydrophobically modified agent solution by n-hexane, ethyl alcohol and
The mixture and ethyl trichlorosilane of chloroform are mixed with volume ratio 1: 40.
Embodiment six
Example IV is with embodiment three, except that the solvent in step 2) in hydrophobically modified agent solution is ethyl alcohol and third
The mixture of ketone, hydrophobic modifier are positive the mixture of decyltrichlorosilane and dodecyltrichlorosilane, and hydrophobic modifier is molten
Liquid is by the mixture of the mixture of ethyl alcohol and acetone and positive decyl trichlorosilane and dodecyltrichlorosilane with volume ratio 1: 62
It mixes.
Embodiment seven
Example IV is as in the first embodiment, except that the solvent in step 2) in hydrophobically modified agent solution is three chloromethanes
Alkane, hydrophobic modifier are the mixture of methyl trichloromethane, ethyl trichloromethane and n-octyl trichlorosilane, and hydrophobic modifier is molten
Liquid is mixed with volume ratio 1: 81 by the mixture of chloroform and methyl trichloromethane, ethyl trichloromethane and n-octyl trichlorosilane
It closes.
Claims (9)
1. a kind of anticorrosion implementation method of super-hydrophobic sponge material, which comprises the steps of:
1) metal material processing will be tried after sand paper polishing, alchlor polishing using adhesive at the sample of certain size
Sample and vent wire bond, and form ventable specimen surface；
2) block for being sized to super-hydrophobic sponge material is coated on the surface of sample as coating, super-hydrophobic
Sample and corrosive liquid are isolated by sponge block, using air pump conveying compressed air into the surface of sample and super-hydrophobic sponge block,
Building ventilation preservative challenge test device；
3) under super-hydrophobic sponge block cladding, aeration condition, the humidity number of the erosion profile of test sample and super-hydrophobic sponge block
According to.
2. a kind of anticorrosion implementation method of super-hydrophobic sponge material according to claim 1, which is characterized in that the glue
Glutinous agent is epoxy resin.
3. a kind of anticorrosion implementation method of super-hydrophobic sponge material according to claim 1 or 2, which is characterized in that institute
Ventilation preservative challenge test device, including beaker are stated, corrosive liquid is loaded in beaker, is equipped in beaker for fixing super-hydrophobic sponge block
Bracket, sample and vent wire are coated in super-hydrophobic sponge block, the syringe needle of the vent wire is mutually glued by adhesive with sample
Knot, vent wire flow through after snorkel, vent wire conveying to sample through the external air pump of snorkel, outside air through air pump compresses
Surface, and enter in super-hydrophobic sponge block.
4. a kind of anticorrosion implementation method of super-hydrophobic sponge material according to claim 3, which is characterized in that described logical
Gas preservative challenge test device further includes humidity sensor, and humidity sensor is coated in super-hydrophobic sponge block, super-hydrophobic for detecting
The humidity data of sponge block.
5. a kind of anticorrosion implementation method of super-hydrophobic sponge material according to claim 3, which is characterized in that described logical
Air tube is concatenated the external air pump of snorkel of drier, and dry air-flow is provided for the surface for sample.
6. a kind of anticorrosion implementation method of super-hydrophobic sponge material according to claim 1, which is characterized in that described super
The preparation method of hydrophobic sponge material includes the following steps:
1) melamine sponge is immersed in cleaning solution and is cleaned by ultrasonic, remove sponge impurity, air-dried after taking-up stand-by；
2) it will be immersed in hydrophobically modified agent solution through the processed melamine sponge of step 1), and make hydrophobic modifier in trimerization
The attachment of cyanamide sponge surface, the hydrophobic modifier in the hydrophobically modified agent solution are organosilan, hydrophobically modified agent solution by
Solvent and organosilan are mixed with volume ratio 1: 5~1: 100, wherein organosilan is carbon atom quantity 1-14 in carbochain
Alkyltrichlorosilanes；
3) it will be air-dried after the processed melamine sponge of step 2) is taken out, super-hydrophobic sponge material is made.
7. a kind of anticorrosion implementation method of super-hydrophobic sponge material according to claim 6, which is characterized in that described to have
Machine silane is methyl trichlorosilane, ethyl trichlorosilane, n-octyl trichlorosilane, positive decyl trichlorosilane, dodecyl trichlorine
At least one of silane.
8. a kind of anticorrosion implementation method of super-hydrophobic sponge material according to claim 6 or 7, which is characterized in that institute
Stating the solvent in hydrophobically modified agent solution is at least one of n-hexane, ethyl alcohol, acetone, chloroform.
9. a kind of anticorrosion implementation method of super-hydrophobic sponge material according to claim 6 or 7, which is characterized in that institute
Stating cleaning solution includes acetone and dehydrated alcohol, and melamine sponge is successively immersed in acetone and dehydrated alcohol and carries out ultrasound clearly
It washes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610171004.5A CN105801903B (en) | 2016-03-17 | 2016-03-17 | A kind of preparation and its anticorrosion implementation method of super-hydrophobic sponge material |
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| CN107245159A (en) * | 2017-05-22 | 2017-10-13 | 江苏大学 | A kind of Preparation method and use of silica constructing super-drainage melamine sponge |
| CN110606980A (en) * | 2019-10-11 | 2019-12-24 | 西南石油大学 | Preparation method of super-hydrophobic LDH/melamine sponge |
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| CN114479170A (en) * | 2022-01-18 | 2022-05-13 | 厦门大学 | Preparation method of super-hydrophobic sponge, super-hydrophobic sponge prepared by preparation method and application of super-hydrophobic sponge |
| CN115057741B (en) * | 2022-07-04 | 2023-06-20 | 西南交通大学 | Preparation method of calcium alginate-chitosan microsphere slow-release fertilizer not easy to swell |
| CN115584051A (en) * | 2022-09-30 | 2023-01-10 | 武汉工程大学 | Polydopamine modified hydrophobic sponge, preparation method thereof and application thereof in water-in-oil emulsion separation |
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